Fuel supply device

Abstract

When a fuel tank is inclined at a negative slope and tilted to the right side, it may be tilted such that a position of a mesh member is relatively higher than a position of a vapor outlet of a vapor outlet passage. In this case, air may enter into a leak passage from an outlet port such that interfacial tension is generated in the mesh member. The interface between fuel and air is present at the mesh member, and the interfacial tension generated at the interface serves to prevent air from entering into a discharge pipe.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a U.S. National Phase entry of, and claims priority to, PCT Application No. PCT / JP2017 / 002076, filed Jan. 23, 2017, which claims priority to Japanese Patent Application No. 2016-029969, filed Feb. 19, 2016, both of which are hereby incorporated herein by reference in their entireties for all purposes.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not applicable.BACKGROUND[0003]The present disclosure relates to a fuel supply device that is installed into a fuel tank and serves to supply fuel from within the fuel tank to an internal combustion engine.[0004]Conventionally, a fuel tank for storing fuel such as gasoline is mounted on an automobile (vehicle). A fuel supply device configured to supply fuel from the tank to an engine (internal combustion engine) as disclosed in Japanese Laid-Open Patent Publication No. 2009-144542 is installed inside the fuel tank. The fuel supply device generally ...

AI Technical Summary

Benefits of technology

The fuel supply device described in this patent prevents air from entering the fuel leak passage, which reduces the "liquid drop" effect caused by stopping the fuel pump. This results in improved engine starting ability at a low cost. The fuel filter device also enhances fuel filtering efficiency and quality, providing cleaner fuel to the engine.

Problems solved by technology

In this condition, with not enough liquid fuel supplied the ignitability of the engine suffers, and the starting ability of an engine will be significantly diminished.

However, in this approach, the number of components for the fuel supply device increases, and the overall manufacturing cost of the fuel supply device will be more expensive with reduced durability when the check valves are provided at each location.

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